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2 简单工厂模式、工厂模式、抽象工厂模式
简单工厂模式: -----------------------------------Pizza.java-------------------- package com; public abstract class Pizza { public abstract void prepare(); public abstract void...
分类:其他好文   时间:2015-05-11 09:09:01    阅读次数:104
URAL1635——DP+回溯——Mnemonics and Palindromes
DescriptionThe student Vasechkin was terribly unlucky at his oral examination. Of 42 examination questions, he didn't prepare only the last one, and h...
分类:其他好文   时间:2015-05-10 20:24:51    阅读次数:189
sqlite3语句对象的生命周期--举例说明
语句对象的生命周期:1.使用sqlite3_prepare_v2或相关的函数创建这个对象2.使用sqlite3_bind_*()给宿主参数绑定值3.通过调用sqlite3_step一次或多次来执行这个sql4.使用sqlite3_reset()重置这个语句,然后回到第2步,这个过程做0次或多次5.使...
分类:数据库   时间:2015-05-09 21:56:14    阅读次数:293
MySQL学习笔记_10_MySQL高级操作(下)
?? MySQL高级操作(下) 五、MySQL预处理语句 1、设置预处理stmt,传递一个数据作为where的判断条件 prepare stmt from “select * from table_name where id > ?”; 2、设置一个变量 set @i = 1; 3、执行预处理语句 execute stmt using @i; ...
分类:数据库   时间:2015-05-08 13:02:33    阅读次数:183
How should we prepare for IoT?
The IoT movement in the next few years not only brings us fast-growing product quality, lowering operating expenditures, accelerating business innovation and consumption saving for sustainable society, but also leads to some risk we should approach....
分类:其他好文   时间:2015-05-02 15:11:34    阅读次数:131
ODAC(V9.5.15) 学习笔记(四)TCustomDADataSet(4)
6.OptionsTCustomDADataSet的选择项为TDADataSetOptions,其成员介绍如下表:名称类型说明TDADataSetOptions AutoPrepareBoolean执行SQL前是否自动执行Prepare CacheCalcFieldsBoolean缓冲计算字段(TF...
分类:其他好文   时间:2015-05-02 13:44:42    阅读次数:124
Captain Marmot(Codeforces Round #271 div2) C
Captain Marmot Time Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Submit Status Description Captain Marmot wants to prepare a huge and important battle again...
分类:其他好文   时间:2015-05-01 17:27:31    阅读次数:263
POJ 1039 Pipe 枚举线段相交
PipeTime Limit:1000MSMemory Limit:10000KTotal Submissions:9493Accepted:2877DescriptionThe GX Light Pipeline Company started to prepare bent pipes for ...
分类:其他好文   时间:2015-05-01 17:14:50    阅读次数:154
1035. Password (20)
To prepare for PAT, the judge sometimes has to generate random passwords for the users. The problem is that there are always some confusing passwords since it is hard to distinguish 1 (one) from l (L ...
分类:其他好文   时间:2015-04-29 17:14:16    阅读次数:131
PHPexcel 下载
<?php$dsn="mysql:dbname=me;host=127.0.0.1;charset=utf8";//连接mysql数据库$user="root";$pwd=‘root‘;$pdo=newPDO($dsn,$user,$pwd);$sql="selectid,name,content,decsfromgoods";$psd=$pdo->prepare($sql);$psd->execute();//echo"<pre>";$arr=$psd->fet..
分类:Web程序   时间:2015-04-28 18:47:07    阅读次数:152
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